heh... yeah, I think Rick could really help Stan along to accept the passage of time. Stan is still panicking but Rick's already contempt with eternity... maybe living as a concrete cast probably comes with a more pronounced sense of stability and continuity than being a feeble young tree... heh...
gosh, there's a whole box of analogies I'd like to use to compare their perspectives... but that would blow this comment out of proportion. Thanks for the inspiring throwback!